Machine for making reinforced-concrete blocks.



D. MORGAN & R. C. MAYLAND. MACHlNE FOR MAKING REINFORCED CONCRETE BLOCKS.

- W APPLICATION FILED JULY I8, 1917. H9%98 Patented Feb. 5, 1918.

4 SHEETS-SHEER 1..

D. MORGAN & R. C. MAYLAND. MACHINE FOR MAKING REINFORCED CONCRETE BLOCKS.

APPLICATION FILED JULY I8, I917.

Patented Feb. 5, 1918.

4 SHEETS-SHEET 2.

' gnuenfozg I I w WWW 'I D. MORGAN & R. C. MAYLAND. MACH |NE'FOR MAKING REINFORCED CONCRETE BLOCKS.

APPLICATION FILED JULY 18. I91].

Patented Feb. 5, 1918.

4 SHEETS-SHEET 3 D. MORGAN 8!. R; C. MAYLAND.

MACHINE FOR MAKING REINFORCED CONCRETE BLOCKS.

APPLICATION FlLED-JULV 13, I911- Patented 5 4 SHEETS-SHEET 4- v pawn niondaixilmn mom-en o, MAYLAND, on snoeiviiiis'ron, inmnois.

iic-hoi-iinn test/imam esmtoriomeomams moses.

ast est.

Specifieation of Letters fiatent.

h'ppi ioatitn met my 18, 191?; serial 1m 181,250.

duetion'" ota sirnp e and eflicieht nieaiis Whichwirill' thoroughly and efficiently tornpress the cement "so as to exclude all air from the block, hile the same is forming.

Another object ofthi's invention is the production of simple and efiieient operating means for the conipressihn plunger and means for agitatin the 'cement or plastic material in the feeding hopper.

With these and other ob'j'eetsin view this invention consists of certain hovel tzoni'binations and arrangements of parts; as will he hereinafter fully eleserihed claimed;

In the accompanying drawings-i Figure 1 is a side-elevation o t-the" plastic blocik machine. s

Fig. 2'is a top plan View thereotl Fig. 3 is a centrallongitu-dinal section through the machine;

'is semen taken at line H f Fig. l;

Fig; 5 is a section taken on line 5'*'5' of Fig.1.

Fi 6 is an enlarged long'itiidinal'seotion through the outer end of the pallet and the cover for the molds v Fig; 7 is a detail perspective'ofone e'fitl of'the pallet; V

Fig; 8 is an enlarged 1ongitudinal section through the feeding end of the cement block making machine.

Fig; 9' is a seetion taken on 1ine 9"--9 of Fig"; 8; the hopper and other parts Being brokenaway. 7

Fig. 1 0 is a detail perspetive View one enact the agitating shaft, showing the op erating arms carried thereby; t

tig; 11 is a detail perspectiiie; offthe elosure gate for the feediiig" hopper.

Fig.- 12 is ail enlarged transverse section taken on line 12' 12 of Fig. 8.

By referring to the accbmpanyie arait ta by timers-is, it win. he the Cemen block ina'k ingmachine is sup 'ortetl' upon a, frame, which frame comprises a plurality of supporting lugs 1 of angle iron construction, the side lugs being braced, and chnneeted together by means of the cross bracing bar'sQ. The lugs 1 suppbrt angle iron side rails 3' on the upper ends, as illustrated in detail in Figs; i and 5-o'f'the draii ings; and these side rails 3c'onstitnte track's upon-Which the pallet is adapted to slide, as Well as the operating; plunger herein'after described. These side rails 3; are hraoed by means of the transirer'selfj'r extend ing braces 4 extending; across the bottom of the" machine, as shown clearly in Figs. 1 and 3 of the drawings; a

v A pallet is supported upon the side rails 3 and comprises a pallet plate 5, 'whieh pallet plate is supported upon the traeks or: angle plates 3 by means ofthe ihverted angle plates 6', which engage the under ofi'the pallet plate 6 and have their lotter edges traveling upon the traeli plates or angle plates 3, as is clearly illustrated in Figs; 5 and 6. This pallet plate 5 Carries an abutment block 7 at its outer end and this abutment block 7 is provided with a vertically extending web portion 8.. The block "2' is also provided ivith sleeve portiohs 9 abutting against the Vertically extending W'eh portion 8; and these sleeveportihns 9 are adapted to receive the reinforcing rods 10 and hold the same in a proper position for being; embedded within the plastic blt'ick adapted to he formed within the inold. Thmnh screws 11 pass through the-sleeve portions 9 for firmly holding-the wintersing" rods 10 in a set position, and against movement during the compression or. the block.

A suitable reinforchi 3,- or bracing" yoke 12 which is substantially v shaped has its upward end'13 abutting" against the rear face of the plate 8,- as shown clearlyin Fig". 3'of the drawing, and the side lugs of the Bracing plates 12 are pivotally'securedto the angle plates 3 by means of the'piizot pins or rivets 1 1, shownvelearljr' in Figs. 1 and 3 of the drawings. It should. be: understood that this joke brace 12 may he swungout of engagement with the abutment block 7, when so desired, in order to permitthe' en;- tire pallet plate to be shifted to adsired positidii upon the rails or angle plates 3'.

Siderplates 1,5 are interposed lotvieeh the.

sta e edges of the pallet plate matte vertically extending web portions 16 of the plates 3, and these side plates 15 of the mold are adapted to be formed of spring material so as to normally, while not under pres sure, spring away from the sides of the block, as soon as the cover of the moldhas been released. It should of course be understood that the side plates 15 may be formed of any shape desired without departing from the pirit of the present invention, for the reason that the shape of these plates will vary with the design of the block which is adapted to be formed. Each side plate 15 is provided with an angle plate 17 upon the upper edge'thereof, and a hinge cover plate 18 is hingedly secured to one of the plates 18 and is adapted to have its opposite edge rest upon the opposite angle plate 17 as shown in detail in Fig. 5. The cover plate 18 is provided with suitable notches 19 for fitting over the pins 20 carried by one of the angle plates 17, and these pins 20 have enlarged heads 21, under which enlarged heads 21 areadapted to fit the notches 22 of the locking levers 23. These locking levers 23 are hingedly secured to the cover plate 18 and are adapted to be swung under the enlarged heads 21 of the pins 20, and in thi way firmly hold the cover 18 in a. closed position over the top of the mold.

The outer ends of the lugs 27 are connected by means of a connecting link 24, and this 1 connecting link is engaged by a lever 25 Which lever is pivotally mounted upon the top of the cover plate 18. This cover plate 18 is reinforced near its outer edge by means of the angle reinforcing plates 26, as shown clearly in Fig. 2 of the drawings. From the foregoing description it will be seen that the 40 cover 18 may be readily swung to an open position, merely through the operation of the lever 25, which will release the locking link 23 from the pins 20 and thereby permit the cover to be swung upwardly. As soon as the cover has been swung upwardly the swinging action of the sides 15 will cause the same to slightly give away from the sides of the block, which is formed within the mold.

A rack supporting plate 27 is supported near one end of the frame, as shown clearly in Figs. 4 and 8, and this rack supporting plate 27 carries a plurality of bearings 28 through which an operating shaft 29 passes, as shown in Fig. 4 of the drawings. A suitable hand operating wheel 30 is carried by and keyed to this shaft 29. A pinion 31 is also keyed to the shaft 29 and this pinion meshes with the teeth formed upon the un- 60 der faces of the rack bar 32, shown clearly in Figs. 4 and 8 of the drawings.

The feeding hopper 33 is supported upon one end of the frame of the plastic block ma- .chine and this hopper is provided with a. rear inclined wall 34 and the plastic mate= rial is adapted to be placed within the hopper 33, and to be discharged out through the discharge end 35 of the hopper into the mold 36, which is formed by means of the side plates 15, the cover 18 and the pallet 5. Cf course, the outer end of this mold 36 is closed by means of the abutment block, above described, and a suitable plunger 37 is slidably mounted upon the plate 5 and between the cover 18 as shown clearly in Fig. 8. This plunger 37 is provided with suitable apertures 38 through which the inner ends of the reinforcing rods 10 pass. The plunger head 37 is carried by the forward end of the rack bar 23, and it should be understood that as the pinion 31 is rotated in one direction, the rack bar 23 will force the plunger 37 upwardly and thereby compress the plastic material which has been poured into the mold 36 through the aperture 35. A suitable cut-off plate 39 is supported upon the top of the rack bar 23 by means of the. support 40, and this plate 39 is adapted to pass under the discharge opening 35 of the hopper 33, and cut off the supply of plastic material into the mold 36. The rack bar 32 works through the guiding elements, as shown in detail in Fig. 9 and the rack bar 49 is provided with a laterally extending stop pin 42 which limits the forward movement of the plunger 37 by abutting against the rear end of the guiding elements 41.

An agitator shaft 43 is carried within the hopper 33 and is provided with a pinrality of agitating fingers 44 as shown clearly in Figs. 2 and 8 of the drawings, and these agitating fingers 44 are adapted to swing within the hopper 33 as the shaft 43 is operated or rotated. The outer ends of this shaft 43 carry arms 45 which arms carry abutment pins 46, which pins 46 are adapted to be pivotally engaged by the plunger 35. \Vhen the discharge opening 35 is opened and as the plunger 35 abuts against the pin 46, it will be seen that the shaft 43 will be rotated thereby swinging the agitating arms 44. A coil spring 47 is carried by each arm 45 and is secured to the end of the machine at a point indicated by the numeral ,mold is sufficient to exclude all air, resulting in a block in which there will be no air bubbles. Any air that might be in the mold Wlll find an escape through the openings in the corners of the mold. The cover when clamped. down is not air tight. The opening same condition is true of the corners in the bottom of the mold. It can be readily seen that the cover when clamped down will not make a perfect joint; that is air perfect, as there will be a small air space where the metal of the sides and cover fail to meet perfcctly.

Blocks that have been made by the machine show that air is excluded, as many of the blocks have been broken and not an air bubble has as yet been discovered.

What is claimed is l. A plastic block machine comprising a frame, a mold carried thereby, an abutment block carried by said mold, adapted to hold reinforcing wires which extend through said mold, a plunger working in said mold, said reinforcing rods working through said plunger, means for actuating said plunger, a feeding hopper, and means carried by said plunger for cutting off the supply of plastic material from said hopper to said mold.

9. A plastic block machine, comprising a frame, amold carried thereby, a plunger Working in said mold, a hopper, an operating shaft, a pinion carried by said shaft, a rack bar engaging said plunger, a cut-off plate supported upon said rack bar, a hopper supported upon said frame, an agitator supported upon said hopper, agitator fingers working within said hopper, tripping fingers carried by said shaft, at its respective ends, pins carried by said fingers and adapted to be engaged by said plunger, for swinging said agitator fingers, as said plunger is moved against said pins, and yieldablc means for returning said agitator fingers to their normal positions.

A plastic block making machine of the class described, comprising a frame, said frame comprising a pair of side rails, a pallet plate, angle plates supportin said pallet plate and working upon said si e rails, side plates secured between said side rails, and pallet plate, an abutment block, a plunger, a. hinge cover releasably secured to said side plates for closing the top of said side plates, and converting the same into a mold.

4. A plastic block making machine of the class described, comprising a frame, said frame comprising a pair of side rails, a pallet plate, angle plates supporting said pallet plate, and working upon said rails, side plates secured between said side rails, and pallet plate, an abutment block, a plunger, a hinge cover releasably secured to said side plates for closing the top of said side Plates, and converting the same into a mold, locking levers carried by said top, and means engaged by said locking levers for firmly holding said cover in a closed position, said side plates being formed of sprmg material, and being adapted to swing upwardly when said cover is released therefrom.

5. A plastic block making machine of the class described, comprising a frame, a pallet plate carried thereby, an abutment plate, said abutment plate provided with a plurality of sleeves supported thereon adapted to hold reinforcing wires adapted to pass longitudinally of said pallet plate, and having their ends fitting in said sleeves, and means passing through said sleeves for locking said reinforcing wires in a set position upon said pallet plate.

6. A plastic block making machine of the class described, comprising a frame, a pallet plate carried thereby, an abutment plate, said abutment plate provided with a plurality of sleeves supported thereon adapted to hold reinforcing wires adapted to passlongitudinally of said pallet plate, and having their ends fitting in said sleeves, and means passing through said sleeves for locking said reinforcing wires in a set position upon said pallet plate, a yoke plate secured to the side of rails of said frame and bearing against the outer ends of said abutment plate for bracing the same while the abutment plate is under pressure.

In testimony whereof we hereunto afiix our signatures.

DAVID MORGAN. RICHARD C. MAYLAND.

fioplea at this patent may he obtained for five cents each, by addressing the "Commissioner of Patents, Washington, 11). t1. 

